[gnome-session/benzea/fix-LC_-vars] util: Unset LC_* variables as they may be unset at login time

[Benjamin Berg <bberg src gnome org>]

commit fac0816af8f4de2671a59604b3eeae3749fde2b7
Author: Benjamin Berg <bberg redhat com>
Date:   Thu Apr 15 16:05:03 2021 +0200

    util: Unset LC_* variables as they may be unset at login time
    
    Otherwise, a switch from a mixed locale where LANG != REGION(/FORMAT) to a
    non-mixed environment where LANG == REGION(/FORMAT) may result in LC_*
    surviving in systemd and the change not getting applied.
    
    Similar issues might occur when other DEs are setting these variables
    before a login into GNOME happens.
    
    Closes: #85

 gnome-session/gsm-util.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/gnome-session/gsm-util.c b/gnome-session/gsm-util.c
index 7dc4f262..f1e6489d 100644
--- a/gnome-session/gsm-util.c
+++ b/gnome-session/gsm-util.c
@@ -65,6 +65,22 @@ static const char * const variable_unsetlist[] = {
     "WAYLAND_SOCKET",
     "GNOME_SHELL_SESSION_MODE",
     "GNOME_SETUP_DISPLAY",
+
+    /* None of the LC_* variables should survive a logout/login */
+    "LC_CTYPE",
+    "LC_NUMERIC",
+    "LC_TIME",
+    "LC_COLLATE",
+    "LC_MONETARY",
+    "LC_MESSAGES",
+    "LC_PAPER",
+    "LC_NAME",
+    "LC_ADDRESS",
+    "LC_TELEPHONE",
+    "LC_MEASUREMENT",
+    "LC_IDENTIFICATION",
+    "LC_ALL",
+
     NULL
 };